2. Use a crafts knife to carefully cut off the front of a papier-mâché letter, leaving the sides intact.

3. Measure the depth of the letter. Trim several strips at differing lengths from three colors of crafts foam so the width of each strip is the same as the letter depth. Roll each strip tightly; hot-glue the ends to hold each roll together tightly.

4. Hot-glue the rolls to the inside of the letter, placing the rolls in a gradational pattern. Space the rolls tightly to fill the letter. Repeat steps 1–3 with remaining letters.